Most XL drivers have the local support office put your XL car listed as XL only & XL & X. When you go to the drivers ap you select which one to drive. Don't know if local Uber office is doing this anymore.I am driving an xl, but most of the times I get x request even though there is 3.6x xl surge. I miss surging xl request due to stupid regular x calls on my app. Uber could easily fix this by fixing their app. They should create separate buttons for x and xl, so that I can choose either one depending on the surge. Of course, I want to make the most money with my car. Surge means more demands less drivers, but it's not working on the field.